styles.css

*::before::after {
    box-sizing: border-box;
    font-family: Gotham Rounded, sans-serif;
}

body{
    background: linear-gradient(to right, rgb(255,218,185), rgb(255,218,185));
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    overflow: hidden;
}

.clock{
    width: 300px;
    height: 300px;
    background-color: rgba(255,255,255, .8);
    border-radius: 50%;
    border: 4px solid black;
    position: relative;
}

.clock .number{
    --rotation: 0;
    position: absolute;
    width: 100%;
    height: 100%;
    text-align: center;
    transform: rotate(var(--rotation));
    font-size: 1.5rem;
}

.clock .number1{ --rotation: 30deg; }
.clock .number2{ --rotation: 60deg; }
.clock .number3{ --rotation: 90deg; }
.clock .number4{ --rotation: 120deg; }
.clock .number5{ --rotation: 150deg; }
.clock .number6{ --rotation: 180deg; }
.clock .number7{ --rotation: 210deg; }
.clock .number8{ --rotation: 240deg; }
.clock .number9{ --rotation: 270deg; }
.clock .number10{ --rotation: 300deg; }
.clock .number11{ --rotation: 330deg; }

.clock .hand{
    --rotation: 0;
    position: absolute;
    bottom: 50%;
    left: 50%;
    border: 1px solid white;
    border-top-left-radius: 10px;
    border-top-right-radius: 10px;
    transform-origin: bottom;
    z-index: 10;
    transform: translate(-50%) rotate(calc(var(--rotation)*1deg));
}

.clock::after{
    content: '';
    position: absolute;
    background-color: black;
    z-index: 11;
    width: 15px;
    height: 15px;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    border-radius: 50%;
}


.clock .hand.seconds{
    width: 4px;
    height: 45%;
    background-color: red;
}

.clock .hand.minutes{
    width: 6px;
    height: 40%;
    background-color: black;
}

.clock .hand.hours{
    width: 9px;
    height: 30%;
    background-color: black;
}